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Finding the Fourth Proportional to 624,813.46, 936,511.45 and 287,156.23

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Solution

The fourth proportional to 624,813.46, 936,511.45 and 287,156.23 is: 430,408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,813.46 : 936,511.45 = 287,156.23 : x
  2. Step 2: Convert to fraction form
    624,813.46/936,511.45 = 287,156.23/x
  3. Step 3: Cross multiply
    624,813.46x = 936,511.45 × 287,156.23
  4. Step 4: Simplify right side
    624,813.46x = 268,925,094,274.66
  5. Step 5: Solve for x
    x = 268,925,094,274.66/624,813.46
  6. Step 6: Final answer
    x = 430,408.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.